Power Bank, 621 Magnetic Battery (MagGo), 5000mAh Magnetic Wireless Portable Charger with USB-C Cable, Only Compatible with iPhone 16/16 Plus/16 Pro/16 Pro Max, iPhone 15/14/13/12 Series

Perfect little power bank for on the go. It snaps magnetically to my phone and stays securely in place great for travel or busy days out. Charges quickly and doesn’t add much weight. I love the slim design and how easy it is to slip into a pocket or bag. Reliable and well-built, as expected from Anker!

Very useful! Perfect to give my phone a little extra charge at the end of the day when I'm running out of battery. Needs to be recharged after one use, but I don't mind - it's great to have that extra security to know my phone won't die when I'm out and about. Also love the size, fits in my small purse and in my pocket easily!

I recently purchased the Anker Power Bank, 621 Magnetic Battery (MagGo), and it has become a handy accessory for my daily needs. Here’s my detailed review: What I Like: - Compact Size: The power bank is very small and lightweight, making it easy to carry around. It fits comfortably in a pocket or small bag, ensuring that I always have backup power on hand. - Magnetic Attachment: The magnetic feature is very convenient for MagSafe-compatible devices. It securely attaches to the back of my phone, allowing for hassle-free charging on the go. - Decent Charging Speed: Despite its small size, the charging speed is respectable. It provides a quick and reliable charge for my phone, which is useful when I need a boost throughout the day. - Sleek Design: The design is sleek and modern. The power bank looks great and feels well-made, matching the aesthetic of my phone and other accessories. - Ease of Use: It’s incredibly easy to use. Just snap it onto the back of your phone, and it starts charging immediately. There’s no need to deal with cables, which is a huge plus. - Magnetic Strength: The magnetic attachment is generally secure (even if it can occasionally shift or detach if bumped or jostled but It’s not a major issue but something to be aware of). What I Dislike: - Limited Battery Capacity: The battery capacity is on the lower side. It provides a partial charge rather than a full recharge for my phone. This is sufficient for emergencies but not ideal for extended use. - Price: Considering the battery capacity, the price might seem a bit high. However, the convenience and quality do offset this to some extent. Value for Money: The Anker Power Bank, 621 Magnetic Battery (MagGo) offers good value for money if you prioritize convenience and portability. While the battery capacity is limited, its compact size and magnetic feature make it a practical choice for quick, on-the-go charging. Conclusion: Overall, I am pleased with the Anker Power Bank, 621 Magnetic Battery (MagGo). Its compact size, sleek design, and magnetic attachment make it a convenient and stylish option for keeping my phone charged throughout the day. Although the battery capacity is limited, it’s perfect for those moments when I need a quick boost of power. The ease of use and portability outweigh the minor drawbacks. Would I buy it again? Yes, for its convenience and portability.

This is a brilliant charger. Works very well. The only thing to mention is that it does get hot when charging your phone however it works very well for charging your phone. The magnet in it and my phone is great as it doesn't come off in my pocket when I am using it to charge my phone. Perfect capacity for charging your iPhone, it gives me a lot of charge, ideal to top up my phone whilst I am out. Would definitely recommend.

I bought this as an alternative to the one sold by Apple due to their cost. My expectations were low considering the relatively lower price however it surprised me in every way. It holds about 2-2.5 charges for my iPhone 13 Pro Max so it has a decent battery capacity when fully charged. It is relatively lightweight and fits the phone well, see picture on an iPhone 14 for reference. It connects instantly and is recognised by the iPhone as a MagSafe accessory which is great. It does heat up a little bit with use, but nothing more than what I would expect from a portable battery pack. Overall, I would say excellent value for money and a necessary accessory for long trips when I know I will not be able to charge my phone!

I’ve been running this for 2 years now and whilst it still works as it always has it’s never been great. It’s thin, it’s portable and wireless charging but the trade off is the limited charge capacity. It’s 5000mAh which is pretty much 1 and a bit of a full iPhone charge, it’s never managed that! When it was new I’d get at best 80% from it, now it’s a couple of years old and a number of cycles later (not a huge number mind you) it’s lucky to push 50%. Like most wireless chargers it does generate heat and I think this contributes to the power loss through heat. For comparison I have a Snapgrip Pro which also has a 5000mAh battery and that easily charges to 100% and has leftovers! It’s not that this is bad, its just disappointing especially for the cost when I purchased it.

This is a great wireless charger to have with you for those days where you are using your phone a lot. I bought it for my wife who has an iPhone that doesn't last the day when we're out and about and she's taking lots of photos/videos, now we just attach this to the back and her phone lasts the rest of the day with no issues. As you'd expect with Anker products, it feels very well made and is a great size for portability. It snaps to the back of the iPhone and also my pixel phone and is very securely attached so won't just fall off. Can't go wrong with this really, great product at a great price.

I just bought this power bank and I’m extremely disappointed. It barely charged my phone for about 10 minutes before it suddenly disconnected on its own. After that, it wouldn’t continue charging properly. What’s worse is that nearly half of the power bank’s battery was already drained in just those 10 minutes, and my phone barely gained any charge. That’s completely unacceptable for a brand-new product. This is clearly a defective piece. A power bank should reliably charge a phone, not lose half its battery in minutes and stop working. Total waste of money. I would not recommend this to anyone.

Product is light weight and slimmest powerbank in the market. material feels very premium. Magnet has good power to hold the mobile.

Amazing and I love the colour. I can even use it as a wire charger for my AirPods and not worry about it sliding off the patch it has magnets

Buscaba una powerbank que tuviera la funcionalidad de carga por cable y también inalámbrica. Estaba entre varias opciones y finalmente me decidí por esta marca y modelo por las opiniones y porque tengo otros productos de esta marca y estoy satisfecho. La calidad de construcción de la batería es muy buena. Los materiales y ajustes son de 10. En cuanto a la carga, la carga inalámbrica se hace de manera rápida y no se calienta en exceso ni el teléfono ni la powerbank. Por el momento estoy satisfecho con la compra.

"Nuovo" sistema per caricare al volo il telefono, comodissimo, una svolta preso per iphone 12 pro (che arrancava con la batteria da sostituire) ho trovato il sistema molto molto comodo: addio power bank da tenere in tasca con un filo pensolante, i due si accoppiano e rimangono li saldamente ha i suoi led per capire lo stato ricarica, tasto on-off, porta usb-C che permette la ricarica con tutto pro - il sistema Qi2, veramente una svolta funzionale - batteria piccola e leggera, ricarica diciamo da 0 a 80-85% il 12 pro (2815 mAh e stressata, vita 78%) - anche veloce nella ricarica la batteria immagazzina 5000 mAh, manda energia a 7,5W (quindi ricarica lenta, ma non è un pproblema, anzi) Contro: - nel mentre son passato al pixel 10, che ha lo stesso sistema Qi2, ma avendo 4800mAh, la batteria ricarica lentissima e diciamo che copre da 0 al 55% probabilmente la dispersione in calore si mangia tanta energia tale per cui non copre bene la funzione come su iphone, anche se rimane un ottima batteria di scorta per portabilità e semplicità d'uso

This was my first Magsafe battery. I had some older Qi wireless chargers and was familiar with heating issues. But these were older and lower power. Without the Magsafe feature, they were finicky and fussy and didn't properly fit around camera lens protrusions. I barely used these devices. This Anker 621 has a lot of promise. The Magsafe feature locks tight and the dimensions do not interfere with the camera protrusions, even with a case on the phone. It's compact and slim, and most importantly, does not require wires. It can be easily carried in a backpack or pocket without an accessory bag for wires and cables. When I first unpacked the battery, I fully charged with with a USB-C PD charger. It charged at 1A/5V. I used it to inductively charge my iPhone 14 Pro intermittently over the next few days. After about 10% charge, I determined the heat buildup to be intolerable. Therefore, I only used the pack intermittently. That worked fine for me over several days. When the battery was empty, it took 20Wh to fully charge. The battery was advertised for 5000mAh, which is impossible to measure without disassembling the unit. However, we can calculate 20Wh / 5V / 0.9 = 4400mAh (where 0.9 is the efficiency of the voltage converter for USB). This is below advertised capacity, but there’s a lot of assumptions in the conversion. Then I used a USB-C cable to charge my iPad Mini. It transferred 14.8Wh at about 9 Watts before exhausting. The round-trip efficiency was high, because recharging took 14.8Wh to fully recharge. I suspect I didn’t get the full 20Wh capacity with the iPad because the higher charge demand choked the battery before it could get fully empty. Using the inductive charge mode, both devices get hot relatively quickly. The switching power electronics get particularly hot. I can easily feel where the transistor is located beneath the plastic shell. The inductive transmitter loop gets warm on the battery and the receiver loop gets warm on the phone. Lithium-ion batteries degrade proportionally to temperature (the Arrhenius relationship), accelerating +25% degradation rate for every 10C, this is bad for the phone. In summary, • The battery delivers 20Wh of energy. If using inductive (Qi and Magsafe), much of the energy is converted to heat, so perhaps only 10-15Wh is actually delivered to the battery. • If using high-current devices using a charge cable, such as an iPad, the high current chokes the battery a bit early, stopping at 15Wh. • My back-of-the-envelope calculation shows 4400mAh vs. rated 5000mAh. I suspect the battery is not delivering rated capacity. Anker should be rating these batteries in Joules (watt-hours) instead of Coulombs (ampere-hours). • Inductive charging is inefficient, losing a quarter to half of energy to heat. This is not Anker’s fault but a result of real-world physics. With my iPhone 14 Pro, I saw about 10C rise per 10% of battery charge. I never let it progress beyond this point. • Lithium-ion batteries accelerate aging degradation due to the Arrhenius relationship about +25% per 10C temperature rise. Therefore, prolonged use of inductive charging will ultimately age your battery prematurely. • This battery is very worthwhile because I don’t have to carry an accessory kit with wires to use. Just slap it on the back of the phone and go. Plus, if frees the connector to use with wired headsets when using.